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Finding the Fourth Proportional to 292,504.88, 438,757.32 and 70,888.88

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Solution

The fourth proportional to 292,504.88, 438,757.32 and 70,888.88 is: 106,333.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,504.88 : 438,757.32 = 70,888.88 : x
  2. Step 2: Convert to fraction form
    292,504.88/438,757.32 = 70,888.88/x
  3. Step 3: Cross multiply
    292,504.88x = 438,757.32 × 70,888.88
  4. Step 4: Simplify right side
    292,504.88x = 31,103,012,812.82
  5. Step 5: Solve for x
    x = 31,103,012,812.82/292,504.88
  6. Step 6: Final answer
    x = 106,333.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.